package com.maochang.d08_springboot_ssmp.controller;

import com.baomidou.mybatisplus.core.metadata.IPage;

import com.maochang.d08_springboot_ssmp.controller.utils.R;
import com.maochang.d08_springboot_ssmp.domain.Book;
import com.maochang.d08_springboot_ssmp.service.IBookService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.io.IOException;
import java.util.List;

@Api(tags="书籍的crud")
@RestController
@RequestMapping("/books")
public class BookController {

    @Autowired
    private IBookService bookService;

    @ApiOperation(value = "获取所有书籍数据")
    @GetMapping
    public R getAll(){
        return new R(true, bookService.list());
    }

    @ApiOperation(value = "添加数据")
    @PostMapping
    public R save(@RequestBody Book book) throws IOException {
    //R r = new R();
    //boolean flag = bookService.save(book);
    //r.setFlag(flag);
        if (book.getName().equals("123") ) throw new IOException();
        boolean flag = bookService.save(book);
        return new R(flag, flag ? "添加成功^_^" : "添加失败-_-!");
    }

    @ApiOperation(value = "修改数据")
    @PutMapping
    public R update(@RequestBody Book book) throws IOException {
        if (book.getName().equals("123") ) throw new IOException();
        boolean flag = bookService.modify(book);
        return new R(flag, flag ? "修改成功^_^" : "修改失败-_-!");
    }

    @ApiOperation(value = "根据id删除数据")
    @DeleteMapping("{id}")
    public R delete(@PathVariable Integer id){
        return new R(bookService.delete(id));
    }


    @ApiOperation(value = "根据id查询数据")
    @GetMapping("{id}")
    public R getById(@PathVariable Integer id){
        return new R(true, bookService.getById(id));
    }

    //@GetMapping("{currentPage}/{pageSize}")
    //public R getPage(@PathVariable int currentPage,@PathVariable int pageSize){
    //    IPage<Book> page = bookService.getPage(currentPage, pageSize);
    //    //如果当前页码值大于了总页码值，那么重新执行查询操作，使用最大页码值作为当前页码值
    //    if( currentPage > page.getPages()){
    //        page = bookService.getPage((int)page.getPages(), pageSize);
    //    }
    //    return new R(true, page);
    //}

    @ApiOperation(value = "分页查询")
    @GetMapping("{currentPage}/{pageSize}")
    public R getPage(@PathVariable int currentPage,@PathVariable int pageSize,Book book){
        //System.out.println("参数==>"+book);

        IPage<Book> page = bookService.getPage(currentPage, pageSize,book);
        //如果当前页码值大于了总页码值，那么重新执行查询操作，使用最大页码值作为当前页码值
        if( currentPage > page.getPages()){
            page = bookService.getPage((int)page.getPages(), pageSize,book);
        }
        return new R(true, page);
    }

}

















